1)采用(yong)(yong)(yong)中冷(leng)連續式(shi)滲(shen)(shen)(shen)碳(tan)(tan)(tan)爐進(jin)(jin)行(xing)滲(shen)(shen)(shen)碳(tan)(tan)(tan)、緩(huan)冷(leng)和(he)(he)再(zai)加熱(re)(re)(re)淬(cui)(cui)(cui)火(huo)(huo)(huo),可(ke)以(yi)(yi)細化材(cai)料(liao)的(de)(de)晶粒(li)度(du)(du)和(he)(he)顯微組織(zhi),并提高(gao)材(cai)料(liao)的(de)(de)彎曲(qu)疲勞強度(du)(du)、抗沖擊性能(neng)、接觸疲勞性能(neng)及耐(nai)磨性能(neng)。 2)采用(yong)(yong)(yong)中冷(leng)滲(shen)(shen)(shen)碳(tan)(tan)(tan)爐進(jin)(jin)行(xing)滲(shen)(shen)(shen)碳(tan)(tan)(tan)、緩(huan)冷(leng)和(he)(he)再(zai)加熱(re)(re)(re)淬(cui)(cui)(cui)火(huo)(huo)(huo),不(bu)僅(jin)可(ke)以(yi)(yi)使(shi)20MnVB、20MnTi2B、18CrMnB及20CrMnMo、20Cr等粗晶粒(li)鋼工件(jian)進(jin)(jin)行(xing)大(da)批(pi)量滲(shen)(shen)(shen)碳(tan)(tan)(tan)淬(cui)(cui)(cui)火(huo)(huo)(huo),簡化熱(re)(re)(re)處理(li)工藝,提高(gao)熱(re)(re)(re)處理(li)生產(chan)效率,降低成本(ben),而且還可(ke)以(yi)(yi)使(shi)工件(jian)獲(huo)得合格的(de)(de)與比較(jiao)細小(xiao)的(de)(de)晶粒(li)度(du)(du)和(he)(he)顯微組織(zhi)。 3)對于Cr-Ni、Cr-Ni-Mo等含Ni材(cai)料(liao),尤其是含Ni量較(jiao)高(gao)的(de)(de)材(cai)料(liao),通過中冷(leng)滲(shen)(shen)(shen)碳(tan)(tan)(tan)爐進(jin)(jin)行(xing)滲(shen)(shen)(shen)碳(tan)(tan)(tan)、緩(huan)冷(leng)和(he)(he)再(zai)加熱(re)(re)(re)淬(cui)(cui)(cui)火(huo)(huo)(huo),并采用(yong)(yong)(yong)較(jiao)低碳(tan)(tan)(tan)勢(shi)、適當溫度(du)(du)和(he)(he)較(jiao)長周期的(de)(de)滲(shen)(shen)(shen)碳(tan)(tan)(tan)淬(cui)(cui)(cui)火(huo)(huo)(huo)工藝,降低了殘留奧氏體(ti)量,使(shi)工件(jian)的(de)(de)金相組織(zhi)達到了產(chan)品的(de)(de)技(ji)術要求(qiu),因此可(ke)以(yi)(yi)實現部分含Ni較(jiao)高(gao)工件(jian)的(de)(de)大(da)批(pi)量滲(shen)(shen)(shen)碳(tan)(tan)(tan)直接淬(cui)(cui)(cui)火(huo)(huo)(huo)
給大(da)(da)家介(jie)紹下常(chang)用(yong)(yong)(yong)(yong)熱(re)(re)處理(li)多(duo)用(yong)(yong)(yong)(yong)爐(lu)(lu)(lu)爐(lu)(lu)(lu)型(xing)的(de)(de)選擇:1.對(dui)(dui)(dui)于不能成(cheng)批(pi)定(ding)型(xing)生(sheng)產(chan)的(de)(de),工件(jian)大(da)(da)小(xiao)不相等(deng)(deng)的(de)(de),種類較多(duo)的(de)(de),要(yao)求工藝上具有(you)(you)通用(yong)(yong)(yong)(yong)性、多(duo)用(yong)(yong)(yong)(yong)性的(de)(de),可(ke)(ke)選用(yong)(yong)(yong)(yong)箱式多(duo)用(yong)(yong)(yong)(yong)爐(lu)(lu)(lu)。2.加熱(re)(re)長軸類及(ji)(ji)長的(de)(de)絲桿(gan),管子等(deng)(deng)工件(jian)時(shi),可(ke)(ke)選用(yong)(yong)(yong)(yong)深井式電爐(lu)(lu)(lu)。3.小(xiao)批(pi)量(liang)(liang)的(de)(de)滲碳(tan)零(ling)(ling)(ling)件(jian),可(ke)(ke)選用(yong)(yong)(yong)(yong)井式氣體(ti)滲碳(tan)爐(lu)(lu)(lu)。4.對(dui)(dui)(dui)于大(da)(da)批(pi)量(liang)(liang)的(de)(de)汽車、拖拉機(ji)齒輪等(deng)(deng)零(ling)(ling)(ling)件(jian)的(de)(de)生(sheng)產(chan)可(ke)(ke)選連續式滲碳(tan)生(sheng)產(chan)線(xian)或(huo)箱式多(duo)用(yong)(yong)(yong)(yong)爐(lu)(lu)(lu)。5.對(dui)(dui)(dui)沖壓件(jian)板材坯料的(de)(de)加熱(re)(re)大(da)(da)批(pi)量(liang)(liang)生(sheng)產(chan)時(shi),最好選用(yong)(yong)(yong)(yong)滾動(dong)爐(lu)(lu)(lu),輥底(di)爐(lu)(lu)(lu)。6.對(dui)(dui)(dui)成(cheng)批(pi)的(de)(de)定(ding)型(xing)零(ling)(ling)(ling)件(jian),生(sheng)產(chan)上可(ke)(ke)選用(yong)(yong)(yong)(yong)推桿(gan)式或(huo)傳送帶式電阻爐(lu)(lu)(lu)(推桿(gan)爐(lu)(lu)(lu)或(huo)鑄帶爐(lu)(lu)(lu))7.小(xiao)型(xing)機(ji)械(xie)零(ling)(ling)(ling)件(jian)如(ru):螺釘,螺母等(deng)(deng)可(ke)(ke)選用(yong)(yong)(yong)(yong)振底(di)式爐(lu)(lu)(lu)或(huo)網帶式爐(lu)(lu)(lu)。8.鋼球及(ji)(ji)滾柱熱(re)(re)處理(li)可(ke)(ke)選用(yong)(yong)(yong)(yong)內螺旋(xuan)的(de)(de)回轉(zhuan)管爐(lu)(lu)(lu)。9.有(you)(you)色金(jin)屬錠坯在大(da)(da)批(pi)量(liang)(liang)生(sheng)產(chan)時(shi)可(ke)(ke)用(yong)(yong)(yong)(yong)推桿(gan)式爐(lu)(lu)(lu),而對(dui)(dui)(dui)有(you)(you)色金(jin)屬小(xiao)零(ling)(ling)(ling)件(jian)及(ji)(ji)材料可(ke)(ke)用(yong)(yong)(yong)(yong)空氣循環(huan)加熱(re)(re)爐(lu)(lu)(lu)。
井(jing)式(shi)加(jia)(jia)(jia)熱(re)爐(lu)(lu)(lu)(lu)(lu)帶(dai)有保(bao)(bao)溫功(gong)能的(de)爐(lu)(lu)(lu)(lu)(lu)蓋(gai)(gai)能與爐(lu)(lu)(lu)(lu)(lu)罐(guan)氣密配(pei)(pei)合(he),保(bao)(bao)證爐(lu)(lu)(lu)(lu)(lu)內氣氛有良好的(de)密封性。井(jing)式(shi)加(jia)(jia)(jia)熱(re)爐(lu)(lu)(lu)(lu)(lu)其下部裝有集風罩(zhao)(zhao),能與導(dao)流筒配(pei)(pei)合(he)。循環風扇裝于爐(lu)(lu)(lu)(lu)(lu)蓋(gai)(gai),用(yong)于加(jia)(jia)(jia)強溫度和氣氛的(de)均勻性。爐(lu)(lu)(lu)(lu)(lu)蓋(gai)(gai)升(sheng)降(jiang)和旋(xuan)(xuan)(xuan)轉為旋(xuan)(xuan)(xuan)臂式(shi)軸心傳動(dong)(dong)機(ji)構(gou),爐(lu)(lu)(lu)(lu)(lu)蓋(gai)(gai)上裝有升(sheng)降(jiang)導(dao)向(xiang)用(yong)導(dao)向(xiang)裝置。井(jing)式(shi)加(jia)(jia)(jia)熱(re)爐(lu)(lu)(lu)(lu)(lu)爐(lu)(lu)(lu)(lu)(lu)蓋(gai)(gai)升(sheng)降(jiang)和旋(xuan)(xuan)(xuan)轉為旋(xuan)(xuan)(xuan)臂式(shi)軸心傳動(dong)(dong)機(ji)構(gou)。升(sheng)降(jiang)和旋(xuan)(xuan)(xuan)轉機(ji)構(gou)由(you)蝸輪升(sheng)降(jiang)機(ji)、限位行程(cheng)開關組成。井(jing)式(shi)加(jia)(jia)(jia)熱(re)爐(lu)(lu)(lu)(lu)(lu)爐(lu)(lu)(lu)(lu)(lu)蓋(gai)(gai)坐落在(zai)爐(lu)(lu)(lu)(lu)(lu)口上法(fa)蘭陶瓷纖維(wei)編(bian)織繩上。在(zai)蓋(gai)(gai)體的(de)保(bao)(bao)溫包下裝有與導(dao)流筒配(pei)(pei)合(he)的(de)導(dao)風罩(zhao)(zhao),導(dao)風罩(zhao)(zhao)通過(guo)多個吊(diao)桿吊(diao)掛在(zai)蓋(gai)(gai)體的(de)法(fa)蘭式(shi)面(mian)板上。井(jing)式(shi)加(jia)(jia)(jia)熱(re)爐(lu)(lu)(lu)(lu)(lu)爐(lu)(lu)(lu)(lu)(lu)蓋(gai)(gai)上設置大(da)功(gong)率(lv)循環風機(ji), 風葉為離心式(shi)多葉片結構(gou)。爐(lu)(lu)(lu)(lu)(lu)蓋(gai)(gai)自動(dong)(dong)升(sheng)降(jiang)行走結構(gou)運(yun)行平穩,井(jing)式(shi)加(jia)(jia)(jia)熱(re)爐(lu)(lu)(lu)(lu)(lu)壽命(ming)不低于5年。
通電(dian)運(yun)(yun)行(xing)步驟:1、打(da)開(kai)(kai)(kai)氮化(hua)爐(lu)(lu)總控(kong)(kong)(kong)電(dian)源。2、電(dian)柜控(kong)(kong)(kong)制(zhi)面板上(shang)“手(shou)動(dong)(dong)(dong)(dong)/自(zi)(zi)動(dong)(dong)(dong)(dong)” 旋鈕(niu),打(da)到(dao)自(zi)(zi)動(dong)(dong)(dong)(dong)。3、進入控(kong)(kong)(kong)制(zhi)系(xi)統(tong)(tong)觸摸屏,點(dian)(dian)擊(ji)(ji)“(一(yi))打(da)弧(hu)參(can)數設定(ding)(ding)”,選(xuan)擇開(kai)(kai)(kai)保(bao)(bao)溫(wen)段數09,完(wan)畢退出。4、點(dian)(dian)擊(ji)(ji)“(二(er))升(sheng)溫(wen)保(bao)(bao)溫(wen)參(can)數設定(ding)(ding)”,查(cha)看參(can)數是(shi)(shi)(shi)否(fou)正確,9保(bao)(bao)溫(wen)時(shi)(shi)(shi)間300min,點(dian)(dian)擊(ji)(ji)“升(sheng)壓(ya)(ya)保(bao)(bao)壓(ya)(ya)參(can)數設定(ding)(ding)”,5到(dao)達壓(ya)(ya)力350Pa。5、進入系(xi)統(tong)(tong)運(yun)(yun)行(xing),選(xuan)擇確認(ren)爐(lu)(lu)體(ti)(ti)(ti), 1號(hao)爐(lu)(lu)(左(zuo)),2號(hao)爐(lu)(lu)(右(you)),若(ruo)爐(lu)(lu)體(ti)(ti)(ti)不(bu)是(shi)(shi)(shi)要工(gong)(gong)作(zuo)(zuo)(zuo)爐(lu)(lu)體(ti)(ti)(ti),點(dian)(dian)擊(ji)(ji)“爐(lu)(lu)體(ti)(ti)(ti)切換”,(爐(lu)(lu)體(ti)(ti)(ti)工(gong)(gong)作(zuo)(zuo)(zuo)過程中(zhong)(zhong)一(yi)定(ding)(ding)不(bu)要按爐(lu)(lu)體(ti)(ti)(ti)切換按鈕(niu))。6、抽真(zhen)(zhen)空:左(zuo)上(shang)角(jiao)系(xi)統(tong)(tong)開(kai)(kai)(kai)始(shi)(shi)按鈕(niu)由紅色變成綠(lv)色,真(zhen)(zhen)空泵(beng)(beng)1(3),2(4)按鈕(niu)變綠(lv),檢查(cha)兩(liang)個真(zhen)(zhen)空泵(beng)(beng)是(shi)(shi)(shi)否(fou)都(dou)啟動(dong)(dong)(dong)(dong)運(yun)(yun)轉,如有不(bu)運(yun)(yun)轉,打(da)開(kai)(kai)(kai)電(dian)控(kong)(kong)(kong)柜右(you)下(xia)門,檢查(cha)是(shi)(shi)(shi)否(fou)跳(tiao)閘,確認(ren)兩(liang)個真(zhen)(zhen)空泵(beng)(beng)都(dou)已(yi)啟動(dong)(dong)(dong)(dong)工(gong)(gong)作(zuo)(zuo)(zuo)后(hou)(hou),打(da)開(kai)(kai)(kai)真(zhen)(zhen)空泵(beng)(beng)蝶閥(之(zhi)前一(yi)定(ding)(ding)要關(guan)(guan)閉(bi)否(fou)則真(zhen)(zhen)空泵(beng)(beng)中(zhong)(zhong)油會被氣(qi)壓(ya)(ya)壓(ya)(ya)進爐(lu)(lu)體(ti)(ti)(ti)),開(kai)(kai)(kai)始(shi)(shi)抽真(zhen)(zhen)空,當(dang)壓(ya)(ya)強(qiang)(qiang)達到(dao)100Pa左(zuo)右(you)時(shi)(shi)(shi),關(guan)(guan)閉(bi)1(3)號(hao)真(zhen)(zhen)空泵(beng)(beng)蝶閥,當(dang)壓(ya)(ya)強(qiang)(qiang)達到(dao)60Pa左(zuo)右(you)時(shi)(shi)(shi),真(zhen)(zhen)空泵(beng)(beng)1(3)自(zi)(zi)動(dong)(dong)(dong)(dong)關(guan)(guan)閉(bi)(綠(lv)燈熄滅(mie)(mie)),高(gao)壓(ya)(ya)按鈕(niu)自(zi)(zi)動(dong)(dong)(dong)(dong)開(kai)(kai)(kai)啟。7、黑色脈沖控(kong)(kong)(kong)制(zhi)盤(pan)上(shang),電(dian)壓(ya)(ya)撥鈕(niu)打(da)到(dao)左(zuo)邊(bian)(bian)自(zi)(zi)動(dong)(dong)(dong)(dong)撥鈕(niu),占空比撥鈕(niu)打(da)到(dao)右(you)邊(bian)(bian)自(zi)(zi)動(dong)(dong)(dong)(dong)(自(zi)(zi)動(dong)(dong)(dong)(dong)時(shi)(shi)(shi)升(sheng)溫(wen)時(shi)(shi)(shi)間長,根據實(shi)際情況可(ke)調(diao)為手(shou)動(dong)(dong)(dong)(dong)控(kong)(kong)(kong)制(zhi)),電(dian)壓(ya)(ya)旋鈕(niu),占空比旋鈕(niu)旋轉到(dao)右(you)邊(bian)(bian)合適位置(zhi)(峰(feng)值(zhi)電(dian)流(liu)=100~200 ,電(dian)流(liu)A≤150),爐(lu)(lu)體(ti)(ti)(ti)開(kai)(kai)(kai)始(shi)(shi)安(an)全工(gong)(gong)作(zuo)(zuo)(zuo),罐內(nei)(nei)工(gong)(gong)件(jian)開(kai)(kai)(kai)始(shi)(shi)打(da)弧(hu)。8、滅(mie)(mie)弧(hu)送(song)氨氣(qi)爐(lu)(lu)內(nei)(nei)溫(wen)度到(dao)90度,爐(lu)(lu)罐內(nei)(nei)輝光(guang)穩定(ding)(ding)之(zhi)后(hou)(hou)(不(bu)閃弧(hu)),開(kai)(kai)(kai)氨氣(qi)罐,黃色換向閥打(da)到(dao)左(zuo)邊(bian)(bian)1號(hao)爐(lu)(lu)(右(you)邊(bian)(bian)為2號(hao)爐(lu)(lu)),氨氣(qi)流(liu)量(liang)不(bu)用調(diao),控(kong)(kong)(kong)制(zhi)器(qi)會根據爐(lu)(lu)內(nei)(nei)壓(ya)(ya)強(qiang)(qiang)自(zi)(zi)動(dong)(dong)(dong)(dong)調(diao)整。9、加送(song)二(er)氧化(hua)碳氣(qi)體(ti)(ti)(ti)大約(yue)9-10小時(shi)(shi)(shi)后(hou)(hou)升(sheng)溫(wen)到(dao)500℃時(shi)(shi)(shi)占空比撥鈕(niu)打(da)至(zhi)(zhi)自(zi)(zi)動(dong)(dong)(dong)(dong)狀(zhuang)態,然后(hou)(hou)繼續升(sheng)溫(wen)至(zhi)(zhi)510℃到(dao)保(bao)(bao)溫(wen)狀(zhuang)態,打(da)開(kai)(kai)(kai)二(er)氧化(hua)碳氣(qi)閥,設置(zhi)屏幕上(shang)2種氣(qi)體(ti)(ti)(ti)流(liu)量(liang)比例(li)(比例(li)約(yue)為7%)。
大型井式爐廠家給大家介紹下多用爐熱處理的爐型選擇: 1.對于不能成批定型生產的,工件大小不相等的,種類較多的,要求工藝上具有通用性、多用性的,可選用箱式多用爐。2.加熱長軸類及長的絲桿,管子等工件時,可選用深井式電爐。3.小批量的滲碳零件,可選用井式氣體滲碳爐。4.對于大批量的汽車、拖拉機齒輪等零件的生產可選連續式滲碳生產線或箱式多用爐。5.對沖壓件板材坯料的加熱大批量生產時,最好選用滾動爐,輥底爐。6.大型井式爐廠家對成批的(de)定(ding)型(xing)(xing)零件,生產(chan)上(shang)可(ke)(ke)選用推(tui)(tui)桿式或傳送帶式電阻爐(lu)(推(tui)(tui)桿爐(lu)或鑄帶爐(lu))7.小(xiao)型(xing)(xing)機械零件如:螺(luo)(luo)釘(ding),螺(luo)(luo)母等可(ke)(ke)選用振(zhen)底式爐(lu)或網帶式爐(lu)。8.鋼(gang)球及(ji)滾(gun)柱(zhu)熱處(chu)理可(ke)(ke)選用內螺(luo)(luo)旋的(de)回轉管爐(lu)。9.有色金屬錠(ding)坯在大批量(liang)生產(chan)時可(ke)(ke)用推(tui)(tui)桿式爐(lu),而對有色金屬小(xiao)零件及(ji)材料(liao)可(ke)(ke)用空氣循環加熱爐(lu)。